I wonder if something like this could exist in GoL. We've got lightspeed wave agars like this, and a spacefiller generating them doesn't seem entirely out of the question, but the waves are a lot more fragile than in your rule:

Presumably that's because the refractory state(s) in Generations make it much harder for disturbances to travel upstream against the wavefronts. I suspect one might be able to make something that looked similar in GoL, but it would probably blow up at the slightest disturbance.

Last edited by vyznev on January 29th, 2018, 10:48 pm, edited 1 time in total.

Look at the cells around (55,37) if the leftmost bounding box corner is (0,0). When evolved 3 generations, a similar pattern but in reverse colouring appears. None of the intermediate generations show resemblance to the original pattern at that position. This is not exclusive to my posted pattern, feel free to play around and see how after 3 generations pretty much all natural-like patterns will be correlated to 3 ticks later (i.e. I don't count a random soup in generation 1, but after 35 generations or so it's good enough to see this).
I think this is the first identified 3-tick correlation in a two-state strobing rule.